Home / 1,059,633.40-1,588,221.30-428,132.60

Finding the Fourth Proportional to 1,059,633.40, 1,588,221.30 and 428,132.60

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Solution

The fourth proportional to 1,059,633.40, 1,588,221.30 and 428,132.60 is: 641,702.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059,633.40 : 1,588,221.30 = 428,132.60 : x
  2. Step 2: Convert to fraction form
    1,059,633.40/1,588,221.30 = 428,132.60/x
  3. Step 3: Cross multiply
    1,059,633.40x = 1,588,221.30 × 428,132.60
  4. Step 4: Simplify right side
    1,059,633.40x = 679,969,314,544.38
  5. Step 5: Solve for x
    x = 679,969,314,544.38/1,059,633.40
  6. Step 6: Final answer
    x = 641,702.42

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.